https://www.mangago.me/read-manga/hadaka_yori_mo_oku_fukaku/
I like this one, although I'm not sure if it constitutes as cheating as they're technically not together, just FWB but the ML had sex with another guy
This is exactly what I wanted and I’m so thankful that it turned me tf off. That shit was nasty. What an awful read.
Thank you a lot for recommending me it though! It cured my curiosity to that rare genre lol
rightttt and the fact he cheated on him with his PARENT makes it alot worse
I don’t like cheaters, I just like having one main go with a other guys too